How does TikZ extract the pgf-keys in LaTeX
In any TikZ command, for example draw, how does TikZ extract the keys, as they can be in any order.
For example, the following draw statements, give the same output (in different locations in the 2D space though):
documentclass{article}
usepackage{tikz}
begin{document}
tikz draw[->,red,thick,dashed] (0,0) |- (2,2);
tikz draw[->,thick,red,dashed] (3,0) |- (0,5);
end{document}
The first draw command has the keys, red, thick and dashed.
The seconddraw command has the keys, thick, red and dashed.
How does TikZ/LaTeX know, red means color, thick is thickness of the line.
What is the logic behind this.
tikz-pgf pgfkeys
asked yesterday
subham sonisubham soni
4,51983184
add a comment |
In any TikZ command, for example draw, how does TikZ extract the keys, as they can be in any order.
For example, the following draw statements, give the same output (in different locations in the 2D space though):
documentclass{article}
usepackage{tikz}
begin{document}
tikz draw[->,red,thick,dashed] (0,0) |- (2,2);
tikz draw[->,thick,red,dashed] (3,0) |- (0,5);
end{document}
The first draw command has the keys, red, thick and dashed.
The seconddraw command has the keys, thick, red and dashed.
How does TikZ/LaTeX know, red means color, thick is thickness of the line.
What is the logic behind this.
tikz-pgf pgfkeys
asked yesterday
subham sonisubham soni
4,51983184
1
thickis a known key, and tikz tries to map unknown keys likeredto colors.
– Ulrike Fischer
yesterday
Please have a look at p. 962 of the pgfmanual where.search alsois explained. (The colors do not work precisely that way but it explains a bit how it can happen that TikZ tries to find a reasonable interpretation of a key. The color behavior is determined bytikzoption{color}{...}intikz.code.tex.)
– marmot
23 hours ago
add a comment |
In any TikZ command, for example draw, how does TikZ extract the keys, as they can be in any order.
For example, the following draw statements, give the same output (in different locations in the 2D space though):
documentclass{article}
usepackage{tikz}
begin{document}
tikz draw[->,red,thick,dashed] (0,0) |- (2,2);
tikz draw[->,thick,red,dashed] (3,0) |- (0,5);
end{document}
The first draw command has the keys, red, thick and dashed.
The seconddraw command has the keys, thick, red and dashed.
How does TikZ/LaTeX know, red means color, thick is thickness of the line.
What is the logic behind this.
tikz-pgf pgfkeys
asked yesterday
subham sonisubham soni
4,51983184
In any TikZ command, for example draw, how does TikZ extract the keys, as they can be in any order.
For example, the following draw statements, give the same output (in different locations in the 2D space though):
documentclass{article}
usepackage{tikz}
begin{document}
tikz draw[->,red,thick,dashed] (0,0) |- (2,2);
tikz draw[->,thick,red,dashed] (3,0) |- (0,5);
end{document}
The first draw command has the keys, red, thick and dashed.
The seconddraw command has the keys, thick, red and dashed.
How does TikZ/LaTeX know, red means color, thick is thickness of the line.
What is the logic behind this.
tikz-pgf pgfkeys
tikz-pgf pgfkeys
asked yesterday
subham sonisubham soni
4,51983184
asked yesterday
subham sonisubham soni
4,51983184
asked yesterday
subham sonisubham soni
4,51983184
asked yesterday
subham sonisubham soni
4,51983184
asked yesterday
subham sonisubham soni
4,51983184
4,51983184
1
thickis a known key, and tikz tries to map unknown keys likeredto colors.
– Ulrike Fischer
yesterday
Please have a look at p. 962 of the pgfmanual where.search alsois explained. (The colors do not work precisely that way but it explains a bit how it can happen that TikZ tries to find a reasonable interpretation of a key. The color behavior is determined bytikzoption{color}{...}intikz.code.tex.)
– marmot
23 hours ago
add a comment |
1
thickis a known key, and tikz tries to map unknown keys likeredto colors.
– Ulrike Fischer
yesterday
Please have a look at p. 962 of the pgfmanual where.search alsois explained. (The colors do not work precisely that way but it explains a bit how it can happen that TikZ tries to find a reasonable interpretation of a key. The color behavior is determined bytikzoption{color}{...}intikz.code.tex.)
– marmot
23 hours ago
1
1
thick is a known key, and tikz tries to map unknown keys like red to colors.– Ulrike Fischer
yesterday
thick is a known key, and tikz tries to map unknown keys like red to colors.– Ulrike Fischer
yesterday
Please have a look at p. 962 of the pgfmanual where
.search also is explained. (The colors do not work precisely that way but it explains a bit how it can happen that TikZ tries to find a reasonable interpretation of a key. The color behavior is determined by tikzoption{color}{...} in tikz.code.tex.)– marmot
23 hours ago
Please have a look at p. 962 of the pgfmanual where
.search also is explained. (The colors do not work precisely that way but it explains a bit how it can happen that TikZ tries to find a reasonable interpretation of a key. The color behavior is determined by tikzoption{color}{...} in tikz.code.tex.)– marmot
23 hours ago
add a comment |
2 Answers
2
active
oldest
votes
The pgfkeys package allows 'styles' to be defined as shortcuts to normal keyvals. Thus thick is a shortcut for line width = 0.8pt and red is (approximately) a shortcut for draw = red. Ultimately, which are defined is down to the pgf implementers.
As mentioned in Problem between pgfkeys, tikz and personal macro, some of these shortcuts are not actually normal keys but are rather found on a specifically-coded path of the pgfkeys parser. In particular, many TikZ commands attempt to treat unknown keys as colours before 'giving up'.
answered yesterday
Joseph Wright♦Joseph Wright
205k23562890
Maybethickness = 0.8pt->line width=0.8pt.
– marmot
23 hours ago
add a comment |
It turns out the color, shape names and arrow names are not actual keys possible because there are too numerous of them. Here @percusse explains how it is handled in the code.
Problem between pgfkeys, tikz and personal macro
answered yesterday
user184225user184225
111
New contributor
user184225 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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2 Answers
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active
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2 Answers
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active
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The pgfkeys package allows 'styles' to be defined as shortcuts to normal keyvals. Thus thick is a shortcut for line width = 0.8pt and red is (approximately) a shortcut for draw = red. Ultimately, which are defined is down to the pgf implementers.
As mentioned in Problem between pgfkeys, tikz and personal macro, some of these shortcuts are not actually normal keys but are rather found on a specifically-coded path of the pgfkeys parser. In particular, many TikZ commands attempt to treat unknown keys as colours before 'giving up'.
answered yesterday
Joseph Wright♦Joseph Wright
205k23562890
Maybethickness = 0.8pt->line width=0.8pt.
– marmot
23 hours ago
add a comment |
The pgfkeys package allows 'styles' to be defined as shortcuts to normal keyvals. Thus thick is a shortcut for line width = 0.8pt and red is (approximately) a shortcut for draw = red. Ultimately, which are defined is down to the pgf implementers.
As mentioned in Problem between pgfkeys, tikz and personal macro, some of these shortcuts are not actually normal keys but are rather found on a specifically-coded path of the pgfkeys parser. In particular, many TikZ commands attempt to treat unknown keys as colours before 'giving up'.
answered yesterday
Joseph Wright♦Joseph Wright
205k23562890
Maybethickness = 0.8pt->line width=0.8pt.
– marmot
23 hours ago
add a comment |
The pgfkeys package allows 'styles' to be defined as shortcuts to normal keyvals. Thus thick is a shortcut for line width = 0.8pt and red is (approximately) a shortcut for draw = red. Ultimately, which are defined is down to the pgf implementers.
As mentioned in Problem between pgfkeys, tikz and personal macro, some of these shortcuts are not actually normal keys but are rather found on a specifically-coded path of the pgfkeys parser. In particular, many TikZ commands attempt to treat unknown keys as colours before 'giving up'.
answered yesterday
Joseph Wright♦Joseph Wright
205k23562890
The pgfkeys package allows 'styles' to be defined as shortcuts to normal keyvals. Thus thick is a shortcut for line width = 0.8pt and red is (approximately) a shortcut for draw = red. Ultimately, which are defined is down to the pgf implementers.
As mentioned in Problem between pgfkeys, tikz and personal macro, some of these shortcuts are not actually normal keys but are rather found on a specifically-coded path of the pgfkeys parser. In particular, many TikZ commands attempt to treat unknown keys as colours before 'giving up'.
answered yesterday
Joseph Wright♦Joseph Wright
205k23562890
edited 23 hours ago
answered yesterday
Joseph Wright♦Joseph Wright
205k23562890
answered yesterday
Joseph Wright♦Joseph Wright
205k23562890
answered yesterday
Joseph Wright♦Joseph Wright
205k23562890
205k23562890
Maybethickness = 0.8pt->line width=0.8pt.
– marmot
23 hours ago
add a comment |
Maybethickness = 0.8pt->line width=0.8pt.
– marmot
23 hours ago
Maybe
thickness = 0.8pt -> line width=0.8pt.– marmot
23 hours ago
Maybe
thickness = 0.8pt -> line width=0.8pt.– marmot
23 hours ago
add a comment |
It turns out the color, shape names and arrow names are not actual keys possible because there are too numerous of them. Here @percusse explains how it is handled in the code.
Problem between pgfkeys, tikz and personal macro
answered yesterday
user184225user184225
111
New contributor
user184225 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
It turns out the color, shape names and arrow names are not actual keys possible because there are too numerous of them. Here @percusse explains how it is handled in the code.
Problem between pgfkeys, tikz and personal macro
answered yesterday
user184225user184225
111
New contributor
user184225 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
It turns out the color, shape names and arrow names are not actual keys possible because there are too numerous of them. Here @percusse explains how it is handled in the code.
Problem between pgfkeys, tikz and personal macro
answered yesterday
user184225user184225
111
New contributor
user184225 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
It turns out the color, shape names and arrow names are not actual keys possible because there are too numerous of them. Here @percusse explains how it is handled in the code.
Problem between pgfkeys, tikz and personal macro
answered yesterday
user184225user184225
111
New contributor
user184225 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered yesterday
user184225user184225
111
New contributor
user184225 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered yesterday
user184225user184225
111
answered yesterday
user184225user184225
111
111
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user184225 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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New contributor
user184225 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
user184225 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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1
thickis a known key, and tikz tries to map unknown keys likeredto colors.– Ulrike Fischer
yesterday
Please have a look at p. 962 of the pgfmanual where
.search alsois explained. (The colors do not work precisely that way but it explains a bit how it can happen that TikZ tries to find a reasonable interpretation of a key. The color behavior is determined bytikzoption{color}{...}intikz.code.tex.)– marmot
23 hours ago